Sennheiser
HMEC-26-CP (uses a 5-pin XLR for microphone, headphone, and power.
Aircraft must be 12-35 volt electrical system and specifically wired with an XLR connector)

Sennheiser
HMEC-26-B-CP (uses a 5-pin XLR for microphone, headphone, and power.
Can also be powered by AA batteries. For aircraft power aircraft must be
12-35 volt electrical system and specifically wired with an XLR connector)

Sennheiser
HMEC-26-V-RP (uses a 6-pin Redel connector for microphone, headphone,
and power. Aircraft must be specifically wired with a Redel connector)

Monday, January 14, 2013
by Vitor from Seattle WA USA Pros: light and clear soundCons: a bit large headset perhapsReview: Excellent product
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Saturday, July 16, 2011
Talk through amplifies white noise! by Kevin from Dubai Pros: Comfort and costCons: Key feature doesn't work well in noisy environments. . Review: Good light weight headset. Better the Bose X in many areas of comfort. We are disappointed with the talk through feature. Used in a Legacy 600 (which is a noisy cockpit), the talk through feature elevated the background noise to the point that I never use it anymore after 50 hours. I understand what's for lunch better with the feature left off then on.
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